I've updated the phpBB theme to use the CUSTOMHEADER variable properly, the forum is now displayed without any menus and looks much better - please note, to get this working you need to update your b6 install by downloading the updates zip from the menu over there on the right.
e107 is open-source and of course, free. None of the developers of this software are paid, but donations do help to cover our monthly dedicated-server costs. If you like and use e107, please consider making a $5 monthly donation. Every little bit helps and is greatly appreciated. Thank you.